Most people will tell you that "Fix it" programs are worse than
worthless as they often cause the very problems they allege to prevent.
Registry cleaners in particular are notorious for this.
I'd say your problem is more likely from malware than viruses, as Avast
(Note the spelling) is a good AV program.
Try Malawarebytes ant-malware:
http://www.malwarebytes.org/
Uninstall "Fix it".


-------- Original Message --------
Subject: computer crashing
From: sharon <[log in to unmask]>
Date: Tue, October 06, 2009 5:05 pm
To: [log in to unmask]

hello there, i was running xp 5.1, advast is my antivirus program, and 
fix it is program that won't let programs start when the computer starts

and it cleans the registery and suppose to fix errors on your disk. 
sorry i'm not to good at explaining these things but i will send you a 
link for the fix it you can figure that one out. 
out.http://www.avanquestusa.com/company/pressreleases/2007/prnov82007-fi8release.asp
i am going to have windows reinstalled on my computer because i am sure 
it has a virus. thank you for any help. mispie

                  Visit our website regularly for FAQs,
               articles, how-to's, tech tips and much more
                          http://freepctech.com